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- DE WANE B. SMITH.

HARROW.

No. 449,649. Patented Mar. 31, 1891.

DE WANE B. SMITH, OF DEERFIELD k PATENT OFFICE.

ASSIGNOR TO CHARLES II. POOLE,

OF ONEIDA, NEW YORK, AND THESNATIONAL HARROV COMPANY,'OF

NEW YORK.

HARROW.

SPECIFICATION forming part of Letters ratent 110.449,649, dated March31, 1891,.

Application filed J annary 30, 18 9Q. Serial No. 338,668. (No model.)

To all whom it may concern,.-

Be it known that I, DE VANE B. SMITH, of Deerfield, in the county ofOneida and State of New York, have invented new and useful Improvementsin Harrows, of which the following, taken in connection with theaccompanying drawings, is a full, clear, and exact description.

My invention relates to an improved harrow, and has for its object theproduction of a simple and effective device, which at a minimum cost ofmanufacture is particularly strong, efficient, durable', and pleasing inappearance; and to this end my invention consists, essentially, in frame-bars intersecting one another, spring barrow-teeth secured to thebarrow-bars, a downward bend or loop formed in the tooth beneath theplane of the barrow-bars, forming a' runner therefor, with the metal ofthe tooth bent forwardly and upwardly from said loop or downwardbend andin front of the intersecting point of the barrow-bars, whereby theclogging of the harrow-f rame is absolutely prevented, and aleveling-bar beneath and supported by the forward harrow-bar forleveling the material to be harrowed and preventing diving or irregularmovement of the harrow.

The invention also consists in the detail construction and arrangementof the parts, all as hereinafter more particularly described, andpointed out in the claims.

In describing this invention reference is had to the accompanyingdrawings, forming a part thereof, in which like letters indicatecorresponding parts in all the views.

Figure l represents a perspective of my improved harrow, illustratingthe general arrangement land construction of the parts. Fig. 2represents an edge view of the harrow, taken in a line at right anglesto one of the front barrow-bars. Fig. 3 represents a sectional view,illustrating a harrow-tooth as secured to its supporting-bar, andillustrating the leveling-bar in position; and Fig. 4 represents aperspective of an auxiliary tooth and the clip for securing the same tothe upper curve of the spring-tooth.

`bars a, arranged at an angle to the line of draft, and cross-bars b,intersecting the draftbars a and suitably secured thereto. These -barsof and b are composed of suitable material, and, as illustrated, one ofsaid bars, as b, is formed with a groove or recess a', into l. which theother bar is fitted for the purpose of i locking the two together by theshoulders of i said groove and necessitating the use of but onesecuring-bolt c. l The teeth D are attached to the harrow- `bars at d,and.- are provided with a bend or loop d', formed by bending the metalof the `tooth rearwardly and downwardly and then forwardly. The tooth isthen bent forwardly and upwardly toa point a suitable distance above theplane of the barrow-frame, and the `free extremity thereof is then bentback' wardly and downwardly, forming a yielding digging-point d3.

By reference to the drawings, particularly Figs. l and 2, it will benoticed that the forward upward bend cl2 of the tooth is substantiallyin front of the intersecting point of the bars a and b, thus preventingmaterial from catching in the angle formed by said bars and clogging theharrow, since the said bend forces the material beneath the harrow bythe runner-shaped lower bend d', whence it passes rearwardly from theharrow without the slightest liability of clogging. This is a feature ofgreat advantage, since frequently the ground to be harrowed containsquack and other materials which prevent the operation of harrows asordinarily constructed; but experience has demonstrated that with myimproved construction ground of this character can be harrowed orcultivated with as much ease and in as thorough a manner as ordinaryclean ground.

Secured at the upper bend of the harrowtooth by a clip D is a smoothingor auxiliary tooth D2, which is described and claimed in a precedingapplication and forms no part of my present invention, althoughparticularly applicable upon a frame of this character.

The attaching end d of the barrow-tooth may be secured to either side ofeither of the The harrow-frame A is composed of draftbarrow-bars, but asillustrated and preferably constructed the said end is disposed insubstantially a horizontal plane and fitted or recessed in a groove' orrecess provided in the lower side of the harrow-bars, and is secured inoperative position by the bolt c, which secures together thebarrow-bars.

In order to further' prevent the harrowframe from clogging andfacilitate its successful and efficient Operation, I provide aleveling-barE, supported in a plane below that of the harrow-frame, andpreferably beneath the forward harrow-bars.

In my preceding application, Serial N o. 328,971, I have illustrated abarrow-frame of a different construction provided with a likeleveling-bar, but in the aforesaid application the leveling-bar issupported directly upon the lower bend of the teeth secured to theharrow-frame bar superimposed above said leveling-bar, while in thisconstruction I prefer to use a brace or connection e, interposed betweenand connected to the front harrowbar and the leveling-bar E. It will beunderstood that with this construction all strain is removed from theteeth and they are free to yield to obstructions, whereas in the formerconstruction they were somewhat hampered by the leveling-bar.

It will be readily understood that in operation the leveling-bar smoothsoff the ground to be harrowed and aords a bearing for the harrow, whichprevents it from diving and irregular movement. By the use of thisleveling-bar I am enabled to use a higher frame than ordinary, and thus,in connection with `sesses features of great advantage. however, limitmyself to the-exact form and the runner-shaped bend d2 and d',absolutely prevent the clogging of the barrow.

The operation of my invention will be readily understood from theforegoing, and it is evident that this construction of harrow pos- I donot,

construction of the parts of my liarrow, since it will be understoodthat they may be varied from that described Without departing from thespirit of my invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The hereindescrbed harrow, the same bcing composed of intersectingfra1ne-bars secured together, a leveling-bar rigidly connected to saidframe-bars with a space between the two, and `spring barrow-teethsecured to said frame-bars and having a downwardly-extending bendor loopextending beneath the frame-hars for forming a runner, and ayieldingdigging-point below the plano of said levelingbar, substantiallyas described.

In testinionywhereof I have hereunto signed my name, in the presence oftwo attesting witnesses, at Deerfield, in the county of Oneida, in theState of New York, this 21st day of Jan'uary,l890.

DE WANE B. SMITH.

Vvitnesses THEoDoRE AVERY, WiLLIAM WATSON, Jr.

